Mechanism for positioning the zero types of accumulator-wheels for printing.



` L, KELLERr .G THB 2BR@ TYPES o? ACGUMUMTOR WHEELS FOR PRINTING.

MBCHANISM FOR Posumm APPLCA'X'HN FIL) JAN. 26. U14

Patented Dec. 29, 1914.

G SHEETSSHEET 1.

B. L. RELLBR. V MEGHANISM FOB, POSITONING THE ZERO TYPES 0F AGC'UMULATOR WHEELS FOB. PRINTING.

APPLICATION FILED JAN.25,1Q14,

Patented Dee. 29, i914.

2 SHEETSASHEET 2.

session; A

- DSVIN Il KELLER, or PORTLAND, onEGoN, fission-ion To THE DUco ADnrNG MACHINE COMPANY, E sfr. pouls, MIssoUni, .A coRPoRA'rIoN or MIssoUR-.L

'.'yiEoHANIslir FoR'BosITioNINe'rHE- ZERO TYPES or ACoUMULA'roB-WHEELS FOR 'PRINTING.

Svcifwtdn 0f L ctters P awlt Patented Dec. 29, 191e. f

t'ginl applicationled October' 16,'1911, Serial No. 654,982. 'Divided and -this application l'cdjnliary .26, 1914.v serial NQ. 814,323.

i Taoll whom it mag/" concern.:

Be-'itknowu that I, EDWIN L. BELLEN, a citizen of the 'United Sta-tesy'formerly res iding at the city of'St-Lonis; Sta-te o f Mis- 6 sourL'bnt non' residing-at thecity of'Portlend, in the county of Multnomah and vState of Or'epfoin have invented certain new and useful Improvements in Mechanisms for Positioningthef/,ero Types -of Accumulator- 510 lVheels-'for Printing, (the present application being one dividedfoutofthat tiled by me October 16,1911;` Serial No. 65f1,982,) of which. the following is @specification- This applieation'is a division md con- Serial No. 654,982:

The present invention relates toimprorements in" calculating machinesland is more .1 ti'rnation of one filedby me @etcher 16,1911,

iiled' April-3', Vi911;Serlf `il-No, $18,655', the present improvements; being- 'diretcd partlcularlyfto niechjaiiisin for'positioning the zerptypes'of thc accumulator wheels in positin for printing. f

The 'objectlo-the. prsentinvention-Ls to proa ?de,t in 21. cnlculating-macliine, means.

whe'. ';b \j the printingT Wheel'slof the accumulator aire automatically set to print' zeros in `all vcolumns tothe righi; of tllc'column containing the selected numeral.

'1` the ccompanyiig drziwings .forming par nf this specification, in which like ilumhers 'vl- -rcierencc 'denote like parts wherever they iceur,A Figure 1 is :i longitudinal remt-- ca'lsectionul'vicw taken centrally through the accumulator, indicating the manner in `4o which thc ac cimmlntor uctnzitinig bars coppl'ntes and work Vforu-'zirclly end subsedi'lently riijsedherej represented :1sconstituted by a seritsof bars 1, -which 2tlg/themselves actuated from the item-printing mechanism (not shown) so as to transmit-theirinoifenentsto the total-printing -wheels 2 offtheeccurnulator. There is one 'of these bars' 1 foreach printf' ing wheel 2, and atthe' left-bend side of each bar is mounted a. shiftable 'plate-31' the -`movement of said plates' being-largely GC concerned, however, with the-ite'm-vp'rintin'g mechanism, which forms nofpafrt of tlie'nie'sent invention. Accordingly the operationo'r" the plates with respect to:th eolie. nism requires. n'o descrbtion bcyo i 'Il' Said bers-V -L-Theipvr f vil formed irith; respective Dr-i'utf Ator, znid the lolite. ed .vided with iiyfor the latterbeing'utiliged rate' :i ci'ossbar-S when tn h luefter describedf This `ci'-oss`b;1 rv u. pairof arms 9 borne by :x-trimsfvexse s lizift *10, which is suitably 'journziled -in o' pair oi supports 1l,"'th'e free front ends-ofsztid arms lit-.ing Aformed with upwardly directed hooks 12 for the purpose.- hereinztfter described, which hooks:xiej-normillly heldin lowered misition by :1- springl?. '01" :t plurality of .such springs. i

'lhc for-wird endsofjthe rack biir's l und the. cooperative plates 3 normallv rest upon :i supporting .'zross-member 14 whicl1 is :irrzingcd :it the entrance of the nccuniulz'ttor :and h is 's comi 15, throngh which the rack nu and plates opcriite, whereby such vparts nrc iifinint-ii'ied' vin proper spaced' relation. A jack 1U Ais located immediately adjacent to the Sui'xgimt 14,. the'jzic-k :uibodying` n pair of end members l?, which 'members are connected by :1nd rigidly mounted on u.' cross-bnr 1S. .Vertical movementnnd o. limitcd extent of *forward und backwardinovement. arc permited the upper portion'of the jack by a link 19,' which is pivotally counectedto one of the main side plates 2060i the accumulator frame or casing at the point 21, the opposite end of this link being slotted and connected` to the jack by the pin 22. The cross-bar 1S is secured to a pair of arms 23, each lof these arms being pi'votally connected at 24 to lthe main side plates. The free ends of the arms 23 have extensions 25 adapted to bear upon the laterally turned upper ends 26 of'a pair of supporting detents 27, these detents being pivoted at 28 to the main side plates 20 and being yieldingly held in position to retain the jack elevated by springs 29, one end of each of these springs being attached to an eccentrically arranged eye 30 on the respective detent, while the opposite end of the spring is attached to the adjacent end member of the jack, whereby the jack will be pulled down after beingA released by the detents. The detents are disengaged from the jack when the upper portion of the latter is rocked toward the right, Fig. 1, the disengagement being eilected by 'the prolongation 31, which bears against and roclrsvthe respective detent. The upwardly directed hooks 12, however, when elevated, engage the upper part 'of the jack and thereby lock thelatter in elevated position.

Thertoothed actuating wheel 32 for each printing wheel 2`is located directly above, but in normal 'disengaged relation to the rack teeth 6 of the respective rack bar. The printingwheels and their actu-ating wheels 32 are mounted to revolve on a common shaft 33, and the periphery of each printing wheel carriesja circular row of type faces 34 bearing consecutively arranged .immer-als, and, also, a type face 35 bearing a` zero character. l' A series of pawls 36, one for each wheel 32, is rotatably mounted on cross-rod 37, and each pawl is held in engagement with the respective wheel 32 by the spring 38, so as'to prevent same from spinning and, also, to center the respective wheel .2 for printing, the nose of said pawl normally occupying a position between two teeth othe wheel 32, in order to allow same to be rotated rearwardly to set the zero type face of' its printing wheel in printing position in the manner hereinafter described.

One of the arms 23 of the jack is part of a bell-crank, the other arm 39 of which has a nose 40 arranged to coperate with a cam 41 borne by-the rock-shaft 42, the latter being operatively connected.A with and actuated by the main operating element of the calculating machine. By this ararngement, the cam 41 effects the raising of the jack 16 in the usual manner. The accumulator, also, embodies a set of members 43, which are. adapted lto automatically set the printing wheels of the accumulator in zero-printing position, there being one of these members for each printing wheel. One end of each of these members has a.l longitudinal slot 44 to receive the cross-rod 45 while the opposite end thereof is formed with an up- Wardly directed projection or tooth '46, which is adapted to enter a wedge-shaped notch 47 formed in the periphery of the respective Vprinting wheel. Each memberis provided at an intermediate point with a locking'shoulder 48 and, also, with an angular slot 49, the latter receiving a pin 50 borne by the arm 51 of a bell-crank, Such arm having a depending projection 52, which coperates with a comb 53, whereby such parts are maintained in proper spacedrelation. A tension spring 54 normally acts to pull each member. 43 to the right, Fig. 1, the other arm 55 oft-he bell-crank associated with that member, which is pivot-ed on the cross-rod 45 being engaged by a tension spring 56, which norma-ily tends to lift the arm 51. Each member 43l is formed with a shoulder 57, which is adapted to be engaged by the upper transverse member of the cradle 58, which, when rocked toward the left in the. usual manner, eil'ects the restoration to normal. position of all of the released members. A latch 59 is provided for each member 43, and these latches are pivotally mounted at their forwardends on the cross-rod 60 and are formed with shoulders 61 arranged to coperate with the-shoulders 48 of the respective members, when the latches are lowered, thereby .preventing thr- Ward movement of such members underfthe action of their springs 54. The rear end of each latch Ais provided with a laterally turned projection 62, which is adapted to bear upon the top'of the respective plate 3,

the latter when lowered and resting upon the support 14 permitting the latch to remain in locked engagement with its respective member 43. When such plate is'elevated in the manner hereinafter described, the latch will be elevated and, in consequence, disengaged from" its -respective member 43, thereby permitting the latter to move forwardly under the influence votits spring 54, the projection 46 on s uch member then acting to turn the respective printing Wheel sufficiently to bring the zero type face 35 thereon into printingr position. Continued movement ofthe member 43 causes its printing wheel. The latches 59'are held in locking position by springs 63.

` The operation of the mechanism is as follows: The entering of the items is accomplished in the same manner as in the calculating machine described in the aforesaid application, Serial No. 618,655, that is to say, by depressing and rotating the linger pieces or sectors, and when each linger piece or sector is depressed or rotated, the rack bar 1, `which is operatively connected thereto, moves forwardlyinto the accumulator,

'projection to become disengaged froml'the i it being understood that the rack teeth 6 of the bar do notengagethe respective toothed actuating Wheel when the 'rack bar so enters the accumulator. The forwarlzmovement vof a rack bar into the accumulator causes its forward end A to engage the 'jack 16 and to rock' the jack toward the right,

Fig. l, so as to trip-or release it from the dote-nfs 27, which hold it in elevated posi-- tion, with the result that the jack drops and thereby rotates the bell-crank arr-n 39 to the left, Fig. a, causing the nose 4;() thereon to bear against the cam 41. The forward movement of a rack bar sets instriimentali- A--ties oroperatingall plates 3of the rack bars to the right ofthe former, so that said plates will, also, be moved forwardly upon operation of the main operating element of the machine, -wherebyallv plates 3 to the right of the left-hand adjusted or depressed finger piece or sector will be caused to enter the accumulator sufliclently tol extend over ithe jack 16.

. crank to roel; clockwise, with the result that the bell-crank is caused to raise vthe jackA 16,

which, in. turn, operates to raise the adja' cent ends ot the rack bars l and the'asso--l ciated plates 3. Theserack bars, however, .are not at this time raisedsufiiciently to eausethe' rael'r teeth 6 to engagethe toothed actuating w'heels, valthougl'i the plates 3 are at this time' raised sufficient-Li"a to lift` their respective latches 59, .which then release or unlock ltheir co'rrespondingv members 43, permitting the -latter to be pulled to the riglit,"Fig. 1', lby their respective springs. Such nim-.ement of each member 43 causes that member to operate upon and turn its respective printin' r wheel so'as to bring its '/:ero type face Btinto printing position, fui theifmorement of such member causing its projection 46 to 'be pulled out of engagement' With the notch 47 in the printing Wheel, and this projection is held ont of the path of the printingr wheel until the ciearing operation takes place. As these meinbers noi-n .illy hold `the respective printing 'wheels in such position that the zerotype faces thereon are not 1n printing position,

the printingr of a total will not cause zeros to he printed to the left of the left-hanl digit of the total, as each printing Wheel to the left et the left-hand digit remains'in norma-i position. Lifting of the rack hars and their associated plates causes the hooks. on said plates telifft the srzns ein ing; the hooks 'the latter i ig inerehy :..iuseil to en jafc the rear .s ie oi the inch and the jack rin i acts as a lock to prevent such racks hars as have not been actuated .VII

fromv being actuated until all the actuated hars have been restored to nntralposition.

After the printing Wheels have been rotated to present'their zero type-faces to the print ing position, the further rotation of the cam 4 1 rocks the hell crank further clockwise andl thereby causes it to lift the jack higher until it reaches its initial positionfthe rack bars being then elevated sufiicientlv to en` gage the rack. teeth 6 thereon witlifthe respective actuating wheels' 32. Hence, when the rack bars and their associated plates are restored to initial position, .the actuating and printing lwheels will `have/been rotatedin a. clockwise -direction '.Fig. vl. Reverse movement of the main operating element of th'e machine rotates the sbatte-2 clockwise,-

Whereby the cam 'll. returns to normal position and leaves tliebell crank in itsinitial; position. Y

I claim: .1. In a calculating' machine, thecombination of a set of bars, an accumulator embodying a set of printing whee'lseaeh.bear`- ing a zero type face, means fornormally holding the .Zero type face of each-accumulator wheel in non-printing position, and means controlled by'said hars' for causing the accumulator wheels to turi '.i' t o zeroprintving` position.

Tn a calculating' inaehinqthe combination of, a set ofbars, an aceumrat'neim bodying a set of "pni'ntinvjvheels caobear,

operative with leach' member land, relegsable .li'odying-a set of printing Awheels each bearineY a 'aero type yface, a' member engaging each wheel and having-a normal tendency ics.

to turn the same to zero printing-positiom.

and a iat-ch controllingr each member' and releasalile by its respective bar. i. ln a Calculating machine, theeomlnn'a.-

tion of a set 'of liars, a. set of cooperativeV platos, an accumulator einhodyinga set of printingr Wheels each bearing a zero typeface. members cooperative with said Wheeis to lnormally hold them in non-printing` posi. tion and having 'a tendencyio turn' such wheels to zero printing position, Aand latches eoiipes'aiive with said members to normally preventoperation thereof' and releasable by said plates.

ln a calculating machine, the combina` tien et a set of hars, a set 'of cooperative platcsfau accumulator embodying a. of ting wheels each-'nearing a zero type face, meniiiors cooperative with said wheels t-f nornialljif held them in norvpx'inting position and haring tendency to turn such wheels to xero printing position, a for set rie

l wheelsto zero printing position, latches hav` ing laterally turnedends resting upon the tops of the respective plates and normally preventing operation'of said members, and means for raising said plates to disengage said latches from said members.

7. In a calculating machine,.the combi- `nation of a set of' reciprocatory bars, a, eomplemental set "of relatively shiftable plates, an'aecumulatorembodying a set of wheels operative by said'bars, and means for preventing subsequent operation of ad. ditionalbars until after such bars as have been actuated are restored to initial position.

8. In a calculating'machine, thecombination. of a set of reciprocatory bars, a com- A plemental set of relatively shftable plates, an accumulator embodying a set of `wheels operative by said bars,'means for setting said. bars in cooperative relation to said wheels, and devices carried by said plates for locking such means from subsequent operation.'

9. In a-'calculating machine, the combinationl 'ofA a set of reciprocatory bars, an accumulator embodying a set 'of wheels operative by said bars, ajack releasable by said bars for setting the same in operative relation to said wheels, and means for locking said jack to 'prevent subsequent .actuation of additional bars.v e

10. -In a calculatingjmachine, the vcombination of a set of reciprocatory bars, a coinplemental set of relatively shiftable pla',es,

an accumulator embodying a setof wheels operative by 'said bars, a jack releasable by said bars for setting the same in operative [relation to said wheels, and .means ca :ried

by said plates for locking said jack Atf prevent subsequent actuation of additional bars.

l1. In .a calculating-machine, thercimbi-4 nation of a set of reciprocatory bars, a complemental set, of relatively shiftable plates, an accumulator embodying a set of vhecls operative by said bars, a jack forgf'se tting said bars'inoperati-ve relation to said y; leels, hooks for lockmg saidgjaclt, and means carried by said plates for engaging said hooks with said jack.

12. In a calculating machine, the combination of an accumulator embodying a set of printing wheels each provided with a peripheral notch and bearinga zero type face, a member associated with each Wheel and having a terminal engagement in the notch therein to hold said wheel with its zero type face in non-printing position, and-means' for shifting each member inonedirection Y.

to turn`its respective wheel tol zerof'printing position.

13. In a calculating machine, the combination of a set of bars, an accumulator embodying a set of printing wheels each provided with a peripheral notch and bearing a zero type face, a member associatedwith each wheel and having a terminal engage,-

ment in the notch therein to hold saidwheel .l I

with its zero type face in nonfprinting p0- sition, a latch controlling each member and releasable by its respective bar, and I neans for shifting eachmember in one direction,

when released, to turn its respectiveyvheel to zero-printingposition.

14. In a calculating machine, the combination of an accumulator embodying Aa-set of printing wheels ach provided With'a peripheral notch and with ,a zero type face,

and a member associated with each WheelA with said wheelsvto normally hold them` with their zero type faces in non-printing ipo position, each of said members having a shoulder, a latch cooperative with each ember and having a shoulder engaged ivit Qthe shoulder thereon, said latches beingrreleasable by said bars, and means for automatically shifting -said `members endwise when released to turn the respective wheels to zero-printing position.

In testimony whereof I 'hereiinto affix my signature in the presence of two Witnesses.

EDWIN L. RELLER.

Witnessesz.

M. BEAVER, H.' D. HOFFMAN. 

